Cementing machine



March 15, 1932. H LEw s 1,849,938

CEMENTING MACHINE Filed Nov. 23. 1927 2 Sheets-Sheet 1 ATTORNEY March 15, 1932. H. F. LEWIS I CEMENTING MACHINE Filed Nov. 23,

1927 2 Sheets-Sheet INVENTOR Harry Lew/s BY I,

ATTORILY Patented Mar. '15, 1932 UNITED STATES PATENT OFFICE.

HARRY F. LEWIS, OF HAMDEN, CONNECTICUT, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

THE GOODYEARS INDIA RUBBER GLOVE MANUFACTURING COMPANY, OI!"v NAUGATUCK, CONNECTICUT, A CORPORATION OF CONNECTICUT CEMENTING MACHINE Application filed November 23, 1927. Serial No. 235,359.

The invention relates to a device for applying fluid coating composition to an ar- 7 ticle. More particularly it relates to an improved device for applying cement to sheet material. 7

Machines customarily used for applying cement to the surface of an article of sheet material such as an insole for shoes, do not coat the entire surface of the article when the article contains shallow recesses in its surface. Also in the manipulation of cementing machine's customarily used, the ocment applied to the article has become im pregnated with numerous air bubbles. Previously known cementing machines have not applied the cement uniformly over the entire area ofthe article; nor have the machines been provided with means for positively loosening the entire surface of the treated article from the feed roll. In machines in which the coating roll is adapted to apply the cement to the upper surface of the article, the means for feeding the cement to the roll in the proper amounts have been relatively complicated and ineflicient.

It is an object of this invention to provide a device for coating articles with cementuniformly andthroughout their entire extent. It is a further object of this invention to provide an improved device for applying cement while maintaining it freefrom air bubbles.

Still another object is to provide a positive means for loosening the entire surface of the cemented article from the feed roll.

Other objects will be apparent from the specification and from the accompanying drawings, in which latter:

Fig. 1 is a side elevation of the machine with parts broken away Fig. 2 is a transverse section through a portion of the machine;

Fig. 3 is a top plan view of the machine Fig. 4 is an end elevation of the machine with parts broken away;

Fig. 5 is a detailed perspective view greatly enlarged of the coating roll; and

Fig. 6 is a detailed perspective view greatly enlarged of the feed roll.

In its general aspects, the device comprises a feed roll having a knurled surface which is the coating roll in liquid tight engagement therewith. Suitable conveyors conduct the insoles to and from the feed roll.

Referring particularly to the drawings, in

its preferred embodiment the device comprises a base 1 carrying bearing housings 2 which support rotatable shaft 3 upon which is rigidly mounted the feed roll 4:. The feed roll l is driven in rotation by means .of a sprocket 5 which is rotatably carried upon the shaft 3. -The feed roll functions as a .support and as 'a feeding means for the article to be cemented. The hub of the sprocket abuts against a clutch ring 6 which is rigidly mounted upon the shaft 3. A-clutchspool 7 loosely mounted ,upon the shaft 3 carries rigidlya clutch pin 8 which is "adapted to pass loosely through an opening in the clutch ring 6 and to have sliding engagement with one or more recesses 9 in the hub of the sprocket 5. The clutch spool 7 can be adjusted longitudinally upon the shart 3 to cause the clutch pin 8 to engage with or be disengaged from the hub of the sprocket 5 by means of a lever 10, one end of .which engages in a groove in the periphery of the clutch spool 7 A coating roll 11 is supported in spaced relation to the feed roll 4, being mounted rigidly upon a shaft 12, which latter is supported in bearing brackets 13 which are pivadapted to abut against a screw 16 secured in I a boss projecting'from the bearing housing 2. A look nut is carried by the adjusting screw for locking the adjustment. By the pivotal ion mounting of the brackets 13, the space between the coating roll and feed roll canbe varied when any scrap stock or other foreign substance accidently passes through the rolls. The coating roll is driven in rotation as follows: The shaft 3 carries rigidly a gear 18 which is adapted 'to engage and drive a I insole or other article with which they engage. The feed roll is provided also with a plurality of annular shallow smooth recesses in its surface which are adapted to be engaged by the projecting teeth of a stripper plate 22 which is so positioned that its teeth extend into the recesses at alocation adjoining the upper surface of the roll so as to function to separate the insole from the feed roll and direct the same upon a conveyor to be later described. Itwill be understood that other shapes can be giventhe projections 21 so longlas they provide a surface which will grip t e insole or other article and cause a feed of the article across the surface of the feed roll. 7 mam/ix,

the lower portion of the reservoir 30 is provided with a cavity 34 which permits of application of the cement to the. downwardly passing surface of the coating roll. The cavity is bounded at one end by the web which projects from the reservoir 30 {and is positioned to extend across the coating roll in cement'tight relation thereto at approximatel the top of the roll. The web 35 prevents ffbw of the cement from cavity 34 down the rear side of the coating roll. Excess cement adhering to the ribs 24 of the coating roll during the operation of applying cement to an insole, is conducted into the recess 36 and becomes banked against web 35 which directs the cement into the recesses of the coating roll so that it can be conducted to the recess 34 of the cement reservoir. A passageway 37 effects communication of the cavity 34 with the reservoir proper. The reservoir is pressed against the surface of the, coating roll by-means of spring pressed lock pins 38. This holding means provides for the easy removal of the reservoir from the coating roll for cleaning and other purposes. Cement is applied to the reservoir from a receptacle 42 through a conduit 43 is regulated by means of a valve 44.

and the flow of cement .A work table 46 is supported adjacent the entry side of the rolls and is adapted to carry a supply-of insoles to be cemented. A conveyor 47 is supported at one end upon a roll 48 which is rigidly mounted upon a shaft The coating roll is provided wit hTpliTfal- 49-whmh al rigidly carries a gear 50 which ity of diamond shaped recesses 23 in its surface which are separated by the ribs 24 which constitute the smooth cylindrical outline of the cylinder. The recesses 23 function as pockets to receive the cement applied to the roll and theycan be varied in shape so long as they accomplish this purpose. The outer margins of the coating roll form a smooth and even cylindrical bearing 25 for a purpose prevent leakage of cement. The

to be later described.

Cement is applied to the coating roll by means of a reservoir 30 which rests upon and is supported by the coating roll. The lower portion of the reservoir is of generally semicylindrical shape. The end walls of the lower portion rest upon the smooth bearing 25 of the coating roll-sufficiently tightly to side wall 31 of the lower portion of the reservoir 30 rests against the ribs-24 of the coating roll sufficiently tightly and is of sufiicient thickness to prevent leakage of cement yet permitting of rotation of the coating roll. A packedge 31 joint at this edge liquid tight. A side wall 33 of the lower portion of the reservoir extends across the face of the coating Y roll spaced'therefrom sufficiently to enable to be carried past the same.

roll 11, filling the recesses in the roll.

is driven by,agear\5 1 which latter engages and is driven by the geaf18. ukconggor 52 is positioned upon the opposite side area roll's for receiving and removing the cemented insoles. The conveyor is supported at one end upon a tion with a gear 54 which engages and is driven by the gear 19. The conveyor 52 is provided with a plurality of transversely ex tending'U-shaped edgedsupports 55 which are adapted to receive and support the cemented article upon its edges, thus providing alminimum of supporting surface for the artic es.

In the operation of the device,

cement is applied from the reservoir 30 to the coating The coating roll and feed roll are driven in rotation and an insole is placed in position 'upon the conveyor 47 which is driven to feed the insole to the feed roll. The feed roll engages and positively carries the insole across its. surface, thereby bringing the insole into position to be light-ly'engaged and brushed y the adjoining surface of the coating roll which is moving in theopposite direction. The cement which has a tendencyto pass out of the recesses of the coating roll upon the ribs 24, is consequently pressed andrubbed across the surface of the insole,

o thoroughly coating the entire surface of the insole with roll 53 which has rigid connec- 3 supported by a uniform thickness of cement which is free from air bubbles. The insole engages the stripper plate 22 and is forced thereby from the feed roll and directed toward the conveyor 52 which receives the insole upon the edges of its supports 55 and conducts the same away from the rolls.

While the machine has been particularly described for use in applying cement to insoles, it will be understood that it is equally applicable for applying other liquids. It is also contemplated to use the machine for coating any sheet material with a liquid.

Having thus described my invention what I claim and desire to protect by Letters Patent is 1. A cementing machine comprising a knurled feed roll, a recessed coating roll,

means for applying cement to the recesses of the coating roll, means for actuating the feed roll to conduct an article across the face of the coating roll, and means for actuating the coating roll whereby its face passes in an opposite direction to the adjoining face of the feed roll.

2. A cementing machine comprising a sup-- port for an article, a coating roll adapted to cooperate therewith to engage the article, a receptacle adapted to contain liquid cement the coating roll and having contherewith whereby the cement is munication applied to the roll, and means .for actuating the roll whereby the article is coated with cement.

3. A cementing machine comprising article feeding means, a coating roll adapted to oooperate therewith to engage the article,

means for actuating the roll' and feeding means, and a receptacle adapted to contain liquid cement supported by the coating roll and having communication therewith upon the side thereof which is moving toward the feeding means.

4. A cementing machine comprising a support adapted to carry an article, a recessed coating roll adapted to cooperate therewith to engage the article, a receptacle adapted to contain cement supported by the coating roll and having communication therewith whereby the recesses are filled with cement, means for actuating the roll whereby cement is applied tothe article, and means for engaging excess cement which flows out of the recesses during rotating of the roll.

5. A cementing machine comprising a teed roll having a plurality of annular recesses, a coating roll adapted to cooperate with the feed roll to engage an article, means for applying cement to the coating roll, means for actuating the rolls whereby the article is? passed between the rolls and is coated with cement, and stripping means having ribs adapted to engage the annular recesses of the feed roll to positively remove the moving article from the feed roll.

6. A cementing. machine comprising a feed roll, a coating roll adapted to cooperate with the feed roll to engage an article, means 'for applying cement tothe coating 

